1Tac05 Channel for OPP

Tonight I was listening to the Nottawasaga/Dufferin OPP and the Dispatcher came on and asked all officers to change their radio to channel 1tac05. The dispatcher went on to say that their status buttons and 10-78 buttons wont work everything has to be done old school through voice.



Does anybody know what frequency this would be? I haven't heard anything on the Nottawasaga/Dufferin OPP Freq since this transmission. My big problem is I don't have a digital scanner.



Thanks in advance.



Ok found out 1Tac05 is a Digital Tac Channel why would they switch to this?